Example usage for javax.naming.ldap LdapContext getSchema

Introduction

In this page you can find the example usage for javax.naming.ldap LdapContext getSchema.

Prototype

public DirContext getSchema(Name name) throws NamingException;

Source Link

Document

Retrieves the schema associated with the named object.

Usage

From source file:edu.vt.middleware.ldap.AbstractLdap.java

/**
 * This will return the LDAP schema associated with the supplied dn. The
 * resulting <code>Iterator</code> is a deep copy of the original search
 * results. See {@link javax.naming.DirContext#getSchema(String)}.
 *
 * @param  dn  <code>String</code> named object in the LDAP
 *
 * @return  <code>Iterator</code> - LDAP search result
 *
 * @throws  NamingException  if the LDAP returns an error
 *//* ww  w .  j  a  v  a 2 s.  c  o m*/
protected Iterator<SearchResult> getSchema(final String dn) throws NamingException {
    if (this.logger.isDebugEnabled()) {
        this.logger.debug("Schema search with the following parameters:");
        this.logger.debug("  dn = " + dn);
        if (this.logger.isTraceEnabled()) {
            this.logger.trace("  config = " + this.config.getEnvironment());
        }
    }

    List<SearchResult> results = null;
    LdapContext ctx = null;
    DirContext schema = null;
    NamingEnumeration<SearchResult> en = null;
    try {
        for (int i = 0; i <= this.config.getOperationRetry() || this.config.getOperationRetry() == -1; i++) {
            try {
                ctx = this.getContext();
                schema = ctx.getSchema(dn);
                en = schema.search("", null);

                results = SR_COPY_RESULT_HANDLER.process(null, en, this.config.getHandlerIgnoreExceptions());

                break;
            } catch (NamingException e) {
                this.operationRetry(ctx, e, i);
            }
        }
    } finally {
        if (schema != null) {
            schema.close();
        }
        if (en != null) {
            en.close();
        }
        if (ctx != null) {
            ctx.close();
        }
    }
    return results.iterator();
}

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